000			a
999			_c14610 _d14610
003			OSt
005			20210309112931.0
008			210309b xxu||||| |||| 00| 0 eng d
040			_aAIKTC-KRRC _cAIKTC-KRRC
100			_913625 _aMahajan, Akshay D.
245			_aDamage Tolerant Analysis of Cracked Al 2024-T3 Panels repaired with Single Boron/Epoxy Patch
250			_aVol,99 (2), June
260			_aKolkata _bSpringer _c2018
300			_a219-229p.
520			_a that damage tolerant analysis has two objectives, namely, remaining life prediction and residual strength evaluation. To achieve the these objectives, determination of accurate and reliable fracture parameter is very important. XFEM methodologies for fatigue and fracture analysis of cracked aluminium panels repaired with different patch shapes made of single boron/epoxy have been developed. Heaviside and asymptotic crack tip enrichment functions are employed to model the crack. XFEM formulations such as displacement field formulation and element stiffness matrix formulation are presented. Domain form of interaction integral is employed to determine Stress Intensity Factor of repaired cracked panels. Computed SIFs are incorporated in Paris crack growth model to predict the remaining fatigue life. The residual strength has been computed by using the remaining life approach, which accounts for both crack growth constants and no. of cycles to failure. From the various studies conducted, it is observed that repaired panels have significant effect on reduction of the SIF at the crack tip and hence residual strength as well as remaining life of the patched cracked panels are improved significantly. The predicted remaining life and residual strength will be useful for design of structures/components under fatigue loading.
650		0	_94621 _aCivil Engineering
700			_913626 _aMurthy, Ramachandra A.
773	0		_tJournal of the institution of engineers (India): Series A _x 2250-2149 _dSwitzerland Springer
856			_uhttps://link.springer.com/article/10.1007/s40030-018-0279-6 _yClick Here
942			_2ddc _cAR